Home
Class 10
PHYSICS
A lens having a power of -3D is a convex...

A lens having a power of -3D is a convex lens.

Promotional Banner

Topper's Solved these Questions

  • REFLECTION AND REFRACTION

    MODERN PUBLICATION|Exercise EXAMPLE|138 Videos

  • MAGNETIC EFFECTS OF ELECTRIC CURRENT

    MODERN PUBLICATION|Exercise EXERCISE|265 Videos

  • SOURCES OF ENERGY

    MODERN PUBLICATION|Exercise EXAMPLE|92 Videos

Similar Questions

Explore conceptually related problems

Define power of a lens

A concave lens is kept in contact with convex lens of focal length 20 cm.The combination works as convex lens of focal length 50 cm. Find the power of concave lens.

A compound lens is made of a convex lens of power 10 D and a concave lens of power 5 D. An object 2 cm high is placed in front of this combination at a distance 40 cm from it. Find nature and size of the image formed.

A compound lens is made of a convex lens of power 10 D and a concave lens of power 5 D. An object 2 cm high is placed in front of this combination at a distance 40 cm from it. Find nature and size of the image formed.

How does the power of a convex lens vary,if the incident violet light is replaced by red light?

How does the power of a convex lens vary if the incident red light is replaced by violet light?

A glass convex lens has a power of +10 D.When ths lens is totally immersed in a liquid,it acts as concave lens of focal length 50cm.Calculate the refractive index of the liquid.Given ^a mu_g=1.5 .

MODERN PUBLICATION-REFLECTION AND REFRACTION-EXAMPLE
  1. A lens having a power of -3D is a convex lens.

    Text Solution

    |

  2. A concave mirror of focal length 20 cm forms a real image at a distanc...

    Text Solution

    |

  3. A convex mirror used on an automobile has a radius of curvature of 3 m...

    Text Solution

    |

  4. An object 1 cm high is place on the axis and 15 cm from a concave mirr...

    Text Solution

    |

  5. The image formed by a concave mirror is half in size of the object. If...

    Text Solution

    |

  6. An object 5 cm high is placed at a distance of 10 cvm from a convex mi...

    Text Solution

    |

  7. When an object is placed at a distance of 60 cm from a convex spherica...

    Text Solution

    |

  8. Find the position of an object which when placed in front of a concave...

    Text Solution

    |

  9. An object is placed 10 cm from a concave mirror of radius of curvature...

    Text Solution

    |

  10. An object is placed 15 cm from a convex mirror of radius of curvature ...

    Text Solution

    |

  11. A 4.5 cm needle is placed 12 cm away from a convex mirror of focal len...

    Text Solution

    |

  12. What is the speed of light?

    Text Solution

    |

  13. If refractive index of glass w.r.t. air is 1.55, then what is the refr...

    Text Solution

    |

  14. The refractive index of water is 4/3 and flint glass is 1.65. What is ...

    Text Solution

    |

  15. A ray of light passes from to air to glass at an angle of incidence of...

    Text Solution

    |

  16. Monochromatic light of wavelength 589 nm is incident from air on a wat...

    Text Solution

    |

  17. The refractive index of diamond is 2.42 and that of glass is 1.5. find...

    Text Solution

    |

  18. A ray of light of frequency of 5 xx 10^(14)Hz is passed through a liqu...

    Text Solution

    |

  19. Velocity of light in a medium is 1.5xx10^8 ms^-1. Find the refractive ...

    Text Solution

    |

  20. The refractive index of diamond is:

    Text Solution

    |

  21. A ray of light passes from air to glass. The glass of incidence is 45^...

    Text Solution

    |